Receiver for wireless communication.



`W. HARRISON. RECEVER FOR WIRELESS COMMUNICATION.

APPLICATION FILED AUG,27, 1903.

fib all 'annum vif muy mii/fern lle it known that l', l 'ramon l-liinnison, a

citizen ot the United States, residing atV for llfireless Communication ot' which the following is a. speciticat' ll'ly invention relates to Wireless coniinunication, my more particular objcctbeing to produce a sys-teni in which' the responsive effect ot a, number ol' separate antennae and separate wave detectors is rendered cumulative' and tlierebt" made more distinct, and is :liso renocred l irregular.

,in the. accom ying drawing forming a parl' oi' this speciliralion, in which like letters indicsite like in the ligure represents antennae are disposed in e row crossing at u right angle the general direction of propo gation of the electro magnetic waives. rlhe idea is, to so distribute' the antennae as tcinterccpt a considerable wave-section and ill also toV render substantifzlly equi-potential the several 'intuitions between the bridges and ontennae.

I do not limit myself, however, to any particular' torni ot apparatus, the scope of niyl invention being connnensurate with my claims. i

The sending apparatus may be ont the usual or any approved construction.

The action of the apparatus is as follows: The electro-magnetic Waves, emanating from the transnnttingr station, strike abreast the u diagiuimuutic' troni; 'omvallen oi" the prex rowloi' receiving antennae above described. L5 Tg1-mil .torni 0f my cygwin, showing' u num-. smllntions having a.. connnon period :tre bei' oi separate autenme exposed to wave ac- Set up simultaneously in the' several an-y tion, and used with number of wave dellen, @8th Cullfle individually affected, iectors connected in parallel with each futherv unil its 'restulice thereby diminished., as in with reference to the local circuit, and in Odinury Wireless communie-s un. There-- t5@ series with the receiving instrument.

magnetic waves, and separate ground terminais 7. in ordinary telephone receiver S is connected inseries with a battery 22, which is grounded by a Wire 23. The coherers 6 areby ineens ol tine .iron Wires 24, 26, connected in parallel with each other with reference to the coherers (i. The several antennae are disposed in a row crossing the general path of weve propagation, and being spaced apart and completely disconnected 'from each other except in relation to the battery circuit, are. thus exposed independently oteach other, to the action of the waves. A number out coils 25, provided with The several antennae are in resonance with each other.- To this end, they have the same inductance, capacity and ohmic resistance, and equal oscillation periods. The

fore, the battery currentsplitting'and. pass- 4rents through the several coherers, in accordancewith Ohms law, C=1T By this aril nulnlgier of antennae fl, preferably verti- .mg i Pal-311511 th'lugh Stemmi cohete is @al as Shown, are spad apart and pm ded yaried in power in accordance with @muis ,'.inwmf n .-r- E iyitlL aeiiai plat o a, self iestoilng coheleis MW C= AS the ummm empoyd m the 8% yo or equivalent devices sensitive to electro R.

laminated iron cores Z7 are employed' to increased. 100 prevent the oscillations in thc antennae trein The circuit is as follows: Battery 22, Wire Jflowing horizontally, The material `(iron) 21, receiver 8, wire bridges 26, thence in paro'f the wire 26 und the fineness of this wire` allel through the coherers 6 and portions f also, contribute to this end. The portions of the antennae 4 to the earth, thence through` the Wire 26, spanning the spaces intermediground wire back to the battery. The bat` 105 ate of the antennae, thus constitute bridgesv tory current is thus divided, so` that each cof' which permit the battery' current to pass herer allows its pro rate proportion of enreely, but prevent the flow of surgings from orgy to pass through it, yet the variation in one antennav to another, along the metallic the current through telephonie receiver is path representing the batteryfcircuit. equal to the sum of the variations in the currangement the receiver S is alfected by current variations, the power of which is commensurate With. the number of colierers. The sounds made by the transmitter are therefore greatly improved, because a current of greater amperage is brought under better control of the co-ac'ting Wave detectors.

In this system a distinct advantage of another lrind is allied, towit: the uncertainty attending t e use of a single detector is greatly lessened. Practically all Wave detectors heretofore -used Work irregularly, and at times cease lto respond at all to the waves. By the system above described the general eii'ect of several detectors is merged, and therefore ayeraged, so iii at a particular moment some of tliedetcctors Work badly', others or" them worir better than usual, and thus the aggregate eilfect is renoinparatively reliable and constant.

le the preferred form of were detecii th my invention may' consist of au antenna, in connection with a, colierer, it is obvio `that other Wave detectors may be employed Without departing from the spirit my ir mention. l prefer to employ oscillations especially the kind produced by l-lcrt'fzi waves, but do not limit ifziysell to the u e cit the same in instances Wlieic other electrical disturbances rf' y be cui; layed. Neither do li limit mysell to the )articular wiring shown, the scope ot' mi.1 ini ention being commensurate with. claims.

What l claim as new and to secure by Letters Patent is:

l. In a receiver system for Wireless coinniuiiication, the` combination of a plurality of antennae grounded separately and having equal oscillation periods, a sepaate ware detector for each antenna, and al. local circuit connected with all oi the wavidetectors. 2. In a receiver` s ystein for `agirciess communication, the combination oa plurality of antennae lia-ving qual oscillation periods and energized independently, a local circuit and a number of separate wave detectors in electrical communication with said antcn nac, and connected in parallel with each other with reference to said local circuit.

In a receiver system for wireless conimunication, the combination of a plurality of antennae grounded separately and having equal oscillation periods, said antennaeJ being disposed in a. row crossing,y the general path of Wave propagation, and mea-ns for cumulating the cflects of the wave energy received by all of said antennae.

4. The combination of a plurality oit temine, more than two in number, spa widely apart and grounded separately, and means: for adding the eii'ects of the Ware energy received by all of said antenn.

5. The combination of a plurality of antenute, more than two in number, spaced widely apart in a direction crossing,r the path of Wave propagation and grounded separately, and `means for totalizing, in arithmetical ratio to the number of antenne-e the energy received by the same.

6.' The combination of a plurality ci. aerials, more than two in number, grounded separately and spaced apart in a direction crossing the path of wave propagation, said aeiials being proportioned for time periods of equal length, and means including; an oscillation detector associated with all ot said aerials and receiving from each aerial its proportionate 'part oft' the entire aggregate energy controlling said oscillation c ctector.

7. ln a system Yfor wireless communication, the combination of a plurality of antenure, more than two in number, eachv tenna having a separate ground, the several grounds being .disposed across theV p 'li of Wave propagation, and means incluA an oscillation detector for adding the elli' t of the Wave energy received by all ci? said antennae.

8. In a receiver system tor wireless com inunication, the combination oit a plurality of antenna: more than two in number, spaced Widely apart so that cach is cuergized to its maximum capacity as if Segre# gated, said antenn being grounded separately, and a local'circuit for totalizing, in arithmetical ratio to the number of antcnnac, the energy received by the same.

9. In a receiver system for wireless comn inuiiication the combination of an indicating` mechanism, a local circuit connected v"iilirtli said indicating mechanism for energizing the saine, a plurality of separate antenriac grounds/l separately andv spaced apart -in order to enable each antenna to be energized to its maximum capacity as if segregated, and a plurality of separate meinbers included in said local circuit and sevorally energized bypaid of said antennae for the purpose of controlling said local circuit.

l0. ln sreceiver system for wireless coiumunication the combination of a plurality o@ separate antenna; spaced apart and grounded seperately, an oscillation detector for each antenna, and a local 'circuit connected with all of said oscilhstion detectors and controllable thereby. Y

In testimony whereof, l have signed my name to this specification in the presence of two subscribing witnesses, this 24th day of August, 1903.

- XVALTON HARRISON. Witnesses J. L. MoAULirrn, lV. M. AVERY. 

